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authorLIU Zhiwei <zhiwei_liu@c-sky.com>2020-08-13 15:14:19 +0800
committerRichard Henderson <richard.henderson@linaro.org>2020-08-28 10:48:07 -0700
commit8282310d8535cc2a8431c516e907da79f92df6eb (patch)
tree770b25f08c3f2ba057fdccb9ce496bf94b1c5d1e /include/fpu/softfloat-types.h
parenta03e924cf8a22888060fc0de4d91de053cd5cde4 (diff)
downloadfocaccia-qemu-8282310d8535cc2a8431c516e907da79f92df6eb.tar.gz
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softfloat: Define operations for bfloat16
This patch implements operations for bfloat16 except conversion and some misc
operations. We also add FloatFmt and pack/unpack interfaces for bfloat16.
As they are both static fields, we can't make a sperate patch for them.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200813071421.2509-2-zhiwei_liu@c-sky.com>
[rth: Use FloatRelation for comparison operations.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/fpu/softfloat-types.h')
-rw-r--r--include/fpu/softfloat-types.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h
index c7ddcab8ca..8a3f20fae9 100644
--- a/include/fpu/softfloat-types.h
+++ b/include/fpu/softfloat-types.h
@@ -113,6 +113,11 @@ typedef struct {
 #define make_float128_init(high_, low_) { .high = high_, .low = low_ }
 
 /*
+ * Software neural-network floating-point types.
+ */
+typedef uint16_t bfloat16;
+
+/*
  * Software IEC/IEEE floating-point underflow tininess-detection mode.
  */